A/C heater vacuum solenoid
#1
A/C heater vacuum solenoid
I have a 1998 Explorer Sport and found a vacuum solenoid leaking antifreeze inside the engine compartment. What is the vacuum solenoid that bypasses the heater core called when the A/C is on? It doesn't show up anywhere in the Haynes repair manual.
#3
RE: A/C heater vacuum solenoid
Or also I found out it was the "heater control valve". Thought I had a head gasket leak due to a small amount of antifreeze consumed over a month. Saw it dripping by accident as I was testing A/C fill. This should be an easy fix. Thanks for your response hayapower.
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